The author is taking a different approach called phenomenological quantum gravity that has some promise to be more productive in the long term. http://backreac

The author is taking a different approach called phenomenological quantum gravity that has some promise to be more productive in the long term. http://backreaction.blogspot.com/2013/06/phenomenological-quantum-gravity.html http://backreaction.blogspot.com/2013/06/phenomenological-qu... From what I understand, she and others are trying to understand what empirical differences a quantum gravity theory of any sort would have, and hopefully will come up with one that can be experimentally observed, which in turn would help people figure out what is the correct quantum gravity theory.